Messages in this thread | | | Date | Mon, 1 Mar 1999 10:37:05 +1100 | From | Richard Gooch <> | Subject | Re: real-time support in Linux (again) |
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yodaiken@chelm.cs.nmt.edu writes: > > what's the difference between using rtlinux for real-time and linux for > > time-sharing, and Sun's approach with Solaris where the scheduler > > algorithms are contained in something akin to loadable kernel modules? > > Sun advertises 2millisecond worst case response time on a dual > processor that is only running their "rt" on one processor. RTlinux > gives 40microsecond response time on a single 486. So the difference > is about 2 orders of magnitude in performance and plus 3 more in > cost.
From when is that response time measured? From the time the CPU enters the interrupt handler, or from the time the interrupt hits the CPU?
Also, the 2 ms case Sun quotes: what kind of hardware is that?
Regards,
Richard....
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